摘　要：

城市是人类福祉的主要载体，也是人类对生态系统影响的主要污染源，同时，城市也是人类减少能源消耗和环境影响的主要战场，建设低碳宜居城市是当前国内外规划师所面临的共同问题。旧城更新是城市建设的主要内容之一，本专辑所录论文的研究表明，空间规划应利用旧城更新的时机，从城市系统优化的角度出发，大力发展绿色节能建筑，建设绿色社区，协调土地与交通的相互关系，调整城市空间结构，促进绿色经济发展，减少城市建筑、交通和产业经济活动过程中的能源消耗。在采用新技术和新方法的过程中， 应注重历史遗迹保护，推动社会与环境公平。同时要完善规划管理，增强规划效力，将能耗和碳排放量作为旧城更新规划的指导性指标，并注意空间规划与行为教育、财税政策等其他管理方法相结合。

Abstract：

City is the major place where human well-being is developed. It is also the main place in which human has severer impacted on ecosystem and thus the key place where policies are made to reduce the impacts as well. To build a low-carbon and livable city has become a common interest for planners and politicians all over the world. Retrofitting the existing built environment in the historic areas is crucial to the reduction of energy consumption and the development of low carbon city. The findings and conclusions of the articles included in this special issue suggest that energy-efficient regeneration can be achieved from promoting green buildings， reducing energy use in historic heritages，building low-carbon communities， harmonizing land use and transport system，optimizing urban spatial structure， and facilitating green economy. With a prior concern on heritage conservation，the planning for retrofitting the old city should also pay attentions to environmental and social justice. Apparently，planning would be more effective and efficient to reduce energy use if it can cooperate with other instruments，such as consumption behavior education and fiscal policies.

关键词：

旧城改造；低碳城市；空间规划；能源消耗；遗迹保护

Keywords：

Urban Retrofitting; Low-carbon City; Spatial Planning; Energy Consumption; Heritage Conservation